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Goodwill And Other Intangible Assets (Tables) | 12 Months Ended
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Dec. 31, 2023
Goodwill and Intangible Assets Disclosure [Abstract] |
Reconciliation Of The Beginning And Ending Balance Of Goodwill | A reconciliation of goodwill at December 31, 2023 and 2022 is as follows:
(In thousands) |  | Aluminum Extrusions(a) |  | PE Films(a) |  | Total
Net carrying value of goodwill at December 31, 2021 |  | $ | 13,270 |  |  | $ | 57,338 |  |  | $ | 70,608 |
Net carrying value of goodwill at December 31, 2022 |  | 13,270 |  |  | 57,338 |  |  | 70,608 |
Goodwill impairment |  | — |  |  | (34,891) |  |  | (34,891) |
Net carrying value of goodwill at December 31, 2023 |  | $ | 13,270 |  |  | $ | 22,447 |  |  | $ | 35,717 |
(a) The goodwill of Aluminum Extrusions and PE Films is carried by the Futura and Surface Protection reporting units, respectively.
Schedule Of Goodwill And Other Intangibles |
(In thousands) | Customer Relationships |  | Proprietary Technology |  | Trade Names |  | Total |
Gross carrying value at December 31, 2022 | $ | 26,549 |  |  | $ | 3,726 |  |  | $ | 13,394 |  |  | $ | 43,669 |  |
Accumulated amortization | (15,467) |  |  | (3,672) |  |  | (12,840) |  |  | (31,979) |  |
Net carrying value at December 31, 2022 | $ | 11,082 |  |  | $ | 54 |  |  | $ | 554 |  |  | $ | 11,690 |  |
Gross carrying value at December 31, 2023 | $ | 26,575 |  |  | $ | 3,732 |  |  | $ | 13,460 |  |  | $ | 43,767 |  |
Accumulated amortization | (17,270) |  |  | (3,687) |  |  | (12,959) |  |  | (33,916) |  |
Net carrying value at December 31, 2023 | $ | 9,305 |  |  | $ | 45 |  |  | $ | 501 |  |  | $ | 9,851 |  |

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